Composite filter stick forming equipment for adding reinforcing member into cavity

Abstract

The invention discloses composite filter stick forming equipment for adding a reinforcing piece into a cavity, and belongs to the technical field of cigarette making equipment, the composite filter stick forming equipment comprises a feeding assembly, a conveying assembly, a speed reduction and material distribution assembly and a switching assembly which are sequentially arranged along a fixing piece conveying path, and all the assemblies are cooperatively controlled by an electric control system; in order to solve the technical problem that in the prior art, it is difficult to accurately add the firmware into a filter stick cavity under the high-speed production condition, a feeding assembly conducts directional sorting on the disordered firmware through cooperation of a roller and a V-shaped hopper, and after the firmware which does not meet the arrangement requirement is removed through a removing plate, the firmware is output through a negative pressure conveying assembly; a switching disc of the switching assembly accurately receives the separated firmware and rotationally conveys the separated firmware to the position where the separated firmware is converged with the composite filter stick, and the composite process of adding the firmware into the cavity is completed; and the full-automatic operation of rapid and accurate implantation is realized, so that the production efficiency, precision and reliability of the composite filter stick are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of tobacco manufacturing equipment technology, specifically to a cavity-added fastener composite filter rod forming equipment, which is particularly suitable for composite filter rod production scenarios that require precise addition of fasteners between filter rod segments to achieve the requirements of "harm reduction, aroma enhancement, and differentiation". It can flexibly adapt to the production needs of binary composite filter rods, ternary composite filter rods, and binary cavity-added fastener filter rods. Background Technology

[0002] The functional upgrade of composite filter rods relies on the precise embedding of specific components within the filter rod cavity, which is a core technological step in enhancing product added value. Existing production technologies use vibratory feeders to orient and sort the components. However, due to the low sorting efficiency of vibratory feeders, multiple sets of vibratory feeders are used to sort the components. But multiple vibratory feeders have multiple output channels that are then concentrated into a single conveyor channel for addition. The addition efficiency is affected by the channel transfer speed, which has become a major bottleneck restricting the high-speed molding and large-scale production of composite filter rods.

[0003] Therefore, this invention aims to provide a device suitable for the high-speed, precise, and directional addition of cylindrical components. The device uses two sets of feeding components to arrange the components, which are then uniformly fed into a separation mechanism via a conveyor wheel for staggered distribution. Subsequently, the components are transferred from the conveyor plate to a composite transfer plate synchronized with the filter rod section, completing sorting and gap elimination processing, ultimately achieving stable and efficient preparation of binary or ternary composite filter rods. This system significantly improves the addition efficiency of cylindrical components, providing reliable technical support for the diversified and high-speed production of composite filter rods. Summary of the Invention

[0004] The purpose of this invention is to provide a cavity-added composite filter rod molding equipment, which aims to achieve convenient and rapid switching between binary composite filter rods, ternary composite filter rods and binary cavity-added composite filter rods, effectively reducing production line upgrade costs. Through automated control of material feeding and insertion, the equipment ensures that the firmware is accurately added to the designated position in the cavity of the composite filter rod, greatly improving the accuracy and stability of the addition process, thereby meeting strict product quality requirements, reducing manual intervention, and improving overall production efficiency and equipment operation stability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A cavity-added composite filter rod forming device includes a filter rod compounding unit and a filter rod forming unit. The filter rod compounding unit is used to cut and arrange filter rods of various materials in sequence and convey them to a forming smoke gun. The filter rod forming unit is used to roll and form the composite filter rods with added fasteners to complete the preparation of the cavity-added composite filter rod. The filter rod compounding unit and the filter rod forming unit are electrically interconnected through a bridge-type electrical control connection device. A firmware addition unit is provided between the filter rod composite unit and the filter rod forming unit for precisely adding firmware to the cavity positions between each filter rod segment; the firmware addition unit includes an independent frame located behind the filter rod composite unit, and a feeding component is provided on the independent frame. The output end of the feeding component is fixedly installed with the input end of the conveying component, the output end of the conveying component is fixedly installed with the input end of the deceleration and distributing component, the output end of the deceleration and distributing component is fixedly installed with the input end of the adapter component, and the adapter component is fixedly installed on the frame of the filter rod composite unit; The transfer assembly includes a fixed plate fixedly mounted on the frame of the filter rod composite unit. A conveyor plate assembly, an output plate assembly, and an input plate assembly are evenly arranged around the perimeter of the fixed plate surface, with a transfer plate assembly located in the center. The input plate assembly, the conveyor plate assembly, and the transfer plate assembly are connected by a belt drive and synchronously driven by a drive motor. The belt is tensioned by a tensioning component on the surface of the fixed plate. The input plate assembly is located at the output end of the filter rod composite unit, and the output plate assembly is located at the input end of the filter rod forming unit. Both are independently driven by another drive motor. A transfer channel is provided between the transmission sides of the conveyor plate assembly, the output plate assembly, the transfer plate assembly, and the input plate assembly.

[0006] Furthermore, the feeding assembly includes a base plate fixedly installed with the independent frame. Supporting pulley assemblies are provided at both ends of the top surface of the base plate. A driving assembly is fixedly installed at the rear end of the top surface of the base plate. The rotating end of the driving assembly is fixedly installed with the middle of the rear end of the roller. The bottom of the roller rests between the tops of the two supporting pulley assemblies. The front end of the roller is open and covered with a feeding cover. The feeding cover is fixedly installed with the base plate. A negative pressure transmission assembly is fixedly installed in the middle of the feeding cover in a horizontal direction. The input end of the negative pressure transmission assembly extends into the inside of the roller and is located directly below the material feeding structure set in the center of the inside of the roller. Its output end is fixedly installed with the input end of the conveying assembly.

[0007] Furthermore, the material feeding structure includes multiple baffles evenly distributed on the inner circumference of the roller, and a V-shaped hopper fixedly installed on the top surface of the input end of the negative pressure transmission component. The bottom opening of the V-shaped hopper is directly above the conveyor belt of the pressure transmission component. One end of the baffle extends towards the central axis of the roller. Each baffle moves with the roller to pour multiple components from the top of the V-shaped hopper into it.

[0008] Furthermore, the inner surface of the V-shaped hopper is provided with multiple obstruction barriers at equal intervals perpendicular to the axial direction of the roller.

[0009] Furthermore, the conveying assembly includes a vacuum generator and a conveying pipe. The inlet end of the vacuum generator is fixedly installed with the output end of the negative pressure transmission assembly, and the outlet end is connected to the input end of the deceleration and material distribution assembly through the conveying pipe. The conveying pipe conveys the firmware into the deceleration and material distribution assembly through the compressed air of the vacuum generator.

[0010] Furthermore, the deceleration and material distribution assembly includes a material guide channel, a cam material distribution mechanism, and a buffer conveying mechanism. The cam material distribution mechanism is fixedly installed on the surface of the fixed plate. The buffer conveying mechanism is set at the entrance of the material guide channel to decelerate the fast-moving firmware. The cam material distribution mechanism is provided with a spiral cam to realize the radial misalignment and separation operation of the continuously input firmware, so that the firmware forms a predetermined spacing.

[0011] Furthermore, the buffer conveying mechanism includes two sets of synchronous friction pulleys, which are respectively arranged on both sides of the inlet of the guide channel. The drive shaft of the synchronous friction pulley is fixedly equipped with a transmission gear. The two transmission gears mesh with each other and are driven by a synchronous motor to realize the counter-rotation of the two sets of synchronous friction pulleys, and transmit the material in the same direction as the original movement of the fastener.

[0012] Furthermore, the input disk assembly includes a mounting base, which is coaxially fixedly mounted on the middle of the gear disk. A synchronous pulley is fixedly mounted on one side of the circular surface of the mounting base. The conveyor disk assembly and the adapter disk assembly have the same structure as the input disk assembly. The three synchronous pulleys are connected by the belt drive.

[0013] Furthermore, the drive motor is fixedly mounted to the fixed plate via a motor mount, and its rotating shaft end is fixedly connected to the mounting base of the input disk assembly via a coupling; The mounting bases of both the conveyor plate assembly and the adapter plate assembly are rotatably connected to the fixed plate. The output disk assembly differs from the structure described above in that the mounting base is coaxially fixedly mounted in the middle of the two gear disks, and the gear plates of the two gear disks are aligned.

[0014] Furthermore, the transfer channel is an integral structure formed by interconnecting the arc-shaped channels covering the transmission of each of the gear discs.

[0015] The beneficial effects of this invention are: Material feeding and arrangement optimization: A dual feeding system is adopted to sort and output the firmware separately. With the help of a V-shaped hopper, the firmware is neatly and sequentially arranged on the suction belt to ensure continuous and stable material feeding.

[0016] Enhanced conveying stability: A buffer conveying mechanism is added to effectively decelerate the fast-launched firmware, achieving stable and uniform output and avoiding the impact of speed fluctuations on the accuracy of subsequent processes.

[0017] Precise and efficient composite implantation: Utilizing five conveyor discs in the adapter assembly, the firmware and filter rods are precisely combined, and the firmware is accurately implanted between the filter rod segments.

[0018] Full-process automated control: Based on an independent electronic control system, it realizes automatic sorting, automatic spacing and precise implantation of firmware, and fully realizes efficient and precise automated production of three types of composite rod segments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall planar structure of the present invention; Figure 2 A 3D structural diagram of adding units to the firmware; Figure 3 This is a schematic diagram of the three-dimensional structure of the feeding assembly; Figure 4 This is a cross-sectional plan view of the feeding assembly. Figure 5 A three-dimensional structural diagram of the deceleration and material distribution component; Figure 6 This is a front view schematic diagram of the adapter component. Figure 7 This is a schematic diagram of the rear view of the adapter assembly. Figure 8 A three-dimensional structural diagram of the input disk assembly; Figure 9 This is a three-dimensional structural diagram of the output disk assembly.

[0020] Reference numerals are provided in the attached figures; where 1 is a filter rod composite unit; 2 is a firmware addition unit; 21 is an independent frame; 22 is a feeding assembly; 221 is a roller; 2211 is a baffle; 222 is a drive assembly; 223 is a feeding hood; 224 is a pressure transmission assembly; 226 is a base plate; 227 is a V-shaped hopper; 23 is a conveying assembly; 231 is a vacuum generator; 232 is a conveying pipe; 24 is a deceleration and material distribution assembly; 241 is a guide channel; 242 is a cam material distribution mechanism; 24 3. Buffer conveyor mechanism; 2431. Synchronous motor; 2432. Transmission gear; 2433. Synchronous friction pulley assembly; 25. Adapter assembly; 251. Fixing plate; 252. Conveyor plate assembly; 253. Tensioning assembly; 254. Output plate assembly; 255. Adapter channel; 256. Adapter plate assembly; 257. Input plate assembly; 2571. Gear plate; 2572. Mounting base; 2573. Synchronous pulley; 258. Belt; 259. Drive motor. Detailed Implementation

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0022] Example 1: As Figure 1-9 As shown, this embodiment provides a cavity-added component composite filter rod forming device, including a filter rod composite unit 1 and a filter rod forming unit. The filter rod composite unit 1 is used to cut and arrange filter rods of various materials in sequence and convey them to the forming smoke gun. The filter rod forming unit is used to roll and form the composite filter rod with added components to complete the preparation of the cavity-added component composite filter rod. The filter rod composite unit 1 and the filter rod forming unit are electrically interconnected through a bridge-type electrical control connection device. A firmware addition unit 2 is provided between the filter rod composite unit 1 and the filter rod forming unit, which is used to precisely add firmware to the cavity positions between each filter rod segment; the firmware addition unit 2 includes an independent frame 21 located behind the filter rod composite unit 1, and a feeding component 22 is provided on the independent frame 21. The output end of the feeding component 22 is fixedly installed with the input end of the conveying component 23, the output end of the conveying component 23 is fixedly installed with the input end of the deceleration and material distribution component 24, the output end of the deceleration and material distribution component 24 is fixedly installed with the input end of the adapter component 25, and the adapter component 25 is fixedly installed on the frame of the filter rod composite unit 1; The adapter assembly 25 includes a fixed plate 251 fixedly installed on the frame of the filter rod composite unit 1. The fixed plate 251 has a conveyor plate assembly 252, an output plate assembly 254 and an input plate assembly 257 evenly arranged around its four edges. The adapter plate assembly 256 is arranged in the middle. The input plate assembly 257, the conveyor plate assembly 252 and the adapter plate assembly 256 are connected by a belt 258 and driven synchronously by a drive motor 259. The belt 258 is tensioned by a tensioning component 253 arranged on the surface of the fixed plate 251. The input plate assembly 257 is located at the output end of the filter rod composite unit 1 and the output plate assembly 254 is located at the input end of the filter rod forming unit. They are driven independently by another drive motor 259. An adapter channel 255 is provided between the transmission sides of the conveyor plate assembly 252, the output plate assembly 254, the adapter plate assembly 256 and the input plate assembly 257.

[0023] Specifically, such as Figure 1 , 6As shown in Figure 7, the filter rod composite unit 1 and the filter rod forming unit are electrically interconnected through a bridge-type electrical control connection device, and are connected to the overall control system through a quick-connect interface with the firmware addition unit 2.

[0024] In this embodiment, the feeding unit 2 is provided with two sets of feeding components 22. Therefore, in terms of equipment structure, a corresponding set of conveyor plate components 252 needs to be added to the transfer component 25. However, the number of feeding components 22 is not limited to this and can be increased or decreased according to the needs of the production process. In general, the composite filter rod unit 1 cuts and conveys the filter rods of different materials from the two feeding units 2, and then conveys them together through the suction system to the transfer component 25 for gap elimination and arrangement; the feeding unit 2 sorts the fixed parts through the feeding component 22 and then sends them to the deceleration and distribution component 24 for fixed-distance separation. The parts then enter the transfer component 25 and are combined with the composite filter rod section according to the composite filter rod set structure before entering the fabric belt wrapped by the molded smoke gun.

[0025] The paper path system of the filter rod forming unit transports the forming paper along the process route to the front end of the forming gun. The glue supply system applies the centerline glue to the forming paper, which then enters the forming gun. Under the action of the belt drive assembly, the forming paper is driven downward.

[0026] After the two types of filter rods and the fasteners are arranged in an orderly manner on the forming paper, they are driven into the cigarette gun by the belt drive assembly to form the required circumferential filter rod strip. After cooling and shaping, they are cut into composite filter rod segments with binary cavities and fasteners of specified length.

[0027] For the debugging of the control system: connect the drive components of the feeding component 22, the negative pressure transmission component 2243, the cam feeding mechanism 242, the buffer conveying mechanism 243, and the transfer component 25 to the PLC controller of the control system; establish a communication connection between the control system and the control system of the filter rod composite unit 1 and the filter rod forming unit through the EtherCAT bus, and calibrate the signal acquisition accuracy; preset process parameters such as filter rod length, cavity length, and operating speed of each drive component.

[0028] Specifically, the workflow of this equipment is divided into: 1. Preparation of filter rod composite After the filter rod composite unit 1 is started, two different types of filter rods, such as cellulose acetate filter rods and paper filter rods, are fed into the slitting system and cut into filter rod segments of a specified length. Then, they are fed into the suction belt for composite by the conveying system, and after being arranged by the output plate to eliminate gaps, the filter rod segments fall sequentially into the forming paper belt below, which is driven by the cloth belt to move in a circular motion. The conveying speed of the cloth belt is synchronized with the speed of the main motor of the filter rod forming unit.

[0029] 2. Firmware Addition 1. Material supply The feeding assembly 22 includes a base plate 226 fixedly installed with the independent frame 21. Support pulley assemblies 225 are provided at both ends of the top surface of the base plate 226. A drive assembly 222 is fixedly installed at the rear end of the top surface of the base plate 226. The rotating end of the drive assembly 222 is fixedly installed with the middle of the rear end of the roller 221. The bottom of the roller 221 rests between the tops of the two support pulley assemblies. The front end of the roller 221 is open and covered with a feeding cover 223. The feeding cover 223 is fixedly installed with the base plate 226. A negative pressure transmission assembly 224 is fixedly installed in the middle of the feeding cover 223 in the horizontal direction. The input end of the negative pressure transmission assembly 224 extends into the inside of the roller 221 and is located directly below the material feeding structure set in the center of the inside of the roller 221. Its output end is fixedly installed with the input end of the conveying assembly 23. The material feeding structure includes multiple baffles 2211 evenly distributed on the inner circumferential surface of the roller 221, and a V-shaped hopper 227 fixedly installed on the top surface of the input end of the negative pressure transmission component 224. The bottom opening of the V-shaped hopper 227 is directly above the conveyor belt of the negative pressure transmission component 224. One end of the baffle 2211 extends towards the central axis of the roller 221. Each baffle 2211 moves with the roller 221 to pour multiple fasteners from the top of the V-shaped hopper 227 into it. Specifically, such as Figure 2-4 As shown, the firmware enters the roller 221 from the feeding hood 223 and follows the rotation of the roller 221 driven by the drive assembly 222. The firmware flips with the roller 221 and falls with the baffle 2211 into the V-shaped hopper 227 above the negative pressure transmission assembly 224. Then it falls downward into the negative pressure transmission assembly 224 and is output in the output direction. The inner surface of the V-shaped hopper 227 is provided with multiple barriers at equal intervals perpendicular to the axis of the roller 221. As the fastener falls along the V-shaped hopper 227, the barriers obstruct the fastener and allow it to continuously change its posture. Since the fastener is cylindrical, its end face is prone to collide with the barriers, while its round surface can pass through smoothly. This helps ensure that the fastener's axial direction is consistent with the transmission direction when it falls into the negative pressure transmission component 224, so that most fasteners can be transmitted in a posture that meets the transmission requirements. In addition, a height limiting structure is set on the path of the negative pressure transmission assembly 224 inside the roller 221 to prevent unqualified fasteners with their round end faces facing upwards from being transmitted. Such fasteners are knocked back onto the roller 221 by the height limiting structure in the cycle.

[0030] 2. Conveying The conveying assembly 23 includes a vacuum generator 231 and a conveying pipe 232. The inlet end of the vacuum generator 231 is fixedly installed with the output end of the negative pressure transmission assembly 224, and the outlet end is connected to the input end of the deceleration and material distribution assembly 24 through the conveying pipe 232. The conveying pipe 232 conveys the components into the deceleration and material distribution assembly 24 through the compressed air of the vacuum generator 231.

[0031] Specifically, such as Figure 2 As shown, the firmware is output from the negative pressure transmission component 224 to the location of the vacuum generator 231, and the firmware is transported to the inlet end of the guide channel 241 by high-speed injection of compressed air through the conveying pipe 232.

[0032] 3. Separation The deceleration and material distribution assembly 24 includes a material guide channel 241, a cam material distribution mechanism 242, and a buffer conveying mechanism 243. The cam material distribution mechanism 242 is fixedly installed on the surface of the fixed plate 251. The buffer conveying mechanism 243 is set at the entrance of the material guide channel 241 to decelerate the fast-moving fasteners. The cam material distribution mechanism 242 is provided with a spiral cam to realize the radial misalignment and separation of continuously input fasteners, so that the fasteners form a predetermined spacing.

[0033] The buffer conveying mechanism 243 includes two sets of synchronous friction pulleys 2433, which are respectively arranged on both sides of the inlet of the guide channel 241. The drive shaft of the synchronous friction pulleys 2433 is fixedly mounted with transmission gears 2432. The two transmission gears 2432 mesh with each other and are driven by a synchronous motor 2431 to realize the counter-rotation of the two sets of synchronous friction pulleys 2433, and to transmit in the same direction as the original movement of the components. Specifically, such as Figure 5 As shown, at the inlet end of the guide channel 241, the fasteners come into contact with the two sets of opposing synchronous friction pulleys 2433 of the buffer conveying mechanism 243 during conveying. The initial contact has a blocking effect on the fasteners, which buffers and decelerates the fasteners launched at high speed. After the fasteners decelerate, they are conveyed synchronously with the synchronous friction pulleys 2433 and are pushed to make the fasteners conveyed at a uniform speed to the cam distribution mechanism 242. The main structure is a cam with convex and concave sides arranged evenly. As the contact area between the fasteners and the cams gradually increases, the cams radially misalign and block the fasteners, so that the fasteners enter the conveying plate 252 one by one to achieve distribution.

[0034] 4. Implantation The input disk assembly 257 includes a mounting base 2572, which is coaxially fixedly mounted in the middle of the gear plate 2571. A synchronous pulley 2573 is fixedly mounted on one side of the circular surface of the mounting base 2572. The conveyor disk assembly 252 and the adapter disk assembly 256 have the same structure as the input disk assembly 257. The three synchronous pulleys 2573 are connected by a belt 258.

[0035] The drive motor 259 is fixedly mounted to the fixing plate 251 via a motor mount, and its rotating shaft end is fixedly connected to the mounting base 2572 of the input disk assembly 257 via a coupling; the mounting bases 2572 of both the conveyor disk assembly 252 and the transfer disk assembly 256 are rotatably connected to the fixing plate 251; the output disk assembly 254 differs from the fixed plate 251 in that the mounting base 2572 is coaxially fixedly mounted in the middle of the two toothed disks 2571, and the toothed plates of the two toothed disks 2571 are aligned; the transfer channel 255 is an integral structure formed by the interconnection of the arc-shaped channels covering the transmission of each toothed disk 2571.

[0036] Specifically, such as Figure 8-9 As shown, the firmware follows the conveyor plate assembly 252 downwards and enters the transfer plate assembly 256 through the transfer channel 255. The filter rods of the upstream filter rod composite device 1, which are fed into the transfer plate assembly 256 through the transfer channel 255 via the input plate assembly 257 upwards, merge with the filter rods of the transfer plate assembly 256 and then follow the transfer plate assembly 256 to rotate counterclockwise to the output plate assembly 254 at the lower left end. The composite sorting of firmware and filter rods is realized in the output plate assembly 254.

[0037] 3. Filter rod forming The paper path system of the filter rod forming unit transports the forming paper along a fixed line to the forming gun. Before the forming paper enters the gun, the glue supply system applies glue evenly to the center and edges of the forming paper. The forming paper carrying the filter rod segments and fasteners enters the forming gun and is wound into shape under the action of the belt drive assembly. The refrigeration unit provides condensate to ensure the filter rod is shaped. The continuous composite filter rod strip after being wound into shape is cut into composite filter rod segments of specified length by the slitting unit, completing the production.

[0038] 4. Collaborative and coordinated control The control system collects the running speed signal of the main motor of the filter rod forming unit in real time. When the speed of the main motor is adjusted, the PLC controller synchronously calculates and adjusts the rotation speed of the transfer component 25, the deceleration and material distribution component 24, and the feeding component 22 to ensure that the firmware implantation speed matches the filter rod conveying speed. 5. Mode switching: When it is necessary to switch to producing binary composite filter rods, the operation steps are as follows: Turn off the control system of firmware addition unit 2 and disconnect the electrical connection of the quick-connect interface; Remove the two conveyor trays 252 of the adapter assembly 25, replace the adapter channel 255, and adjust the corresponding program parameters of the adapter assembly 25 drive.

[0039] Adjust the process parameters of filter rod composite unit 1 and filter rod forming unit, start the equipment to produce binary composite filter rods, and the switching process takes ≤30 minutes.

[0040] When switching to the production of ternary composite filter rods, the operation steps are the same as those for adding firmware to binary cavities. The only difference is that the filter rods are sorted by the feeding component 22 of the firmware addition unit 2 and then fed into the transfer component 25 to be sorted together with the filter rods.

[0041] Example 2: The technical solution of the present invention is not limited to the specific embodiments described above, and can be adjusted according to actual needs: Firmware type: Only cylindrical structure required, no restrictions on material or type; Filter rod material: It can be adapted to the composite of two or more different filter rod materials. The cutting and conveying system of filter rod composite unit 1 can adjust the parameters according to the characteristics of the filter rod material. Composite filter rod versatility: Depending on production capacity requirements, two different fasteners can be added to achieve a composite filter rod with four different types of rod segments, or two identical fasteners can be added to achieve a composite filter rod with three different types of rod segments.

[0042] In summary, this invention, through modular design and fully automated control technology, solves the problems of insufficient functionality, poor flexibility, and slow firmware addition speed of existing filter rod forming equipment. It enables rapid switching production of binary composite filter rods, binary cavity-added firmware composite filter rods, and ternary composite filter rods, improving production efficiency and product quality, and has broad application prospects.

[0043] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cavity-added composite filter rod forming device, comprising a filter rod compounding unit (1) and a filter rod forming unit, wherein the filter rod compounding unit (1) is used to cut and arrange filter rods of various different materials in sequence and convey them to a forming smoke gun; the filter rod forming unit is used to roll and form the composite filter rod with added fasteners to complete the preparation of the cavity-added composite filter rod; the filter rod compounding unit (1) and the filter rod forming unit are electrically interconnected through a bridge-type electrical control connection device; Its features are, A firmware addition unit (2) is provided between the filter rod composite unit (1) and the filter rod forming unit for precisely adding firmware to the cavity positions between each filter rod segment; the firmware addition unit (2) includes an independent frame (21) located behind the filter rod composite unit (1), and a feeding component (22) is provided on the independent frame (21). The output end of the feeding component (22) is fixedly installed with the input end of the conveying component (23), the output end of the conveying component (23) is fixedly installed with the input end of the deceleration and distributing component (24), the output end of the deceleration and distributing component (24) is fixedly installed with the input end of the adapter component (25), and the adapter component (25) is fixedly installed on the frame of the filter rod composite unit (1); The adapter assembly (25) includes a fixing plate (251) fixedly installed on the frame of the filter rod composite unit (1). A conveyor plate assembly (252), an output plate assembly (254), and an input plate assembly (257) are evenly arranged around the perimeter of the fixing plate (251). An adapter plate assembly (256) is located in the center of the plate. The input plate assembly (257), the conveyor plate assembly (252), and the adapter plate assembly (256) are connected by a belt (258) and synchronously driven by a drive motor (259). The belt (258) is tensioned by a tensioning component (253) provided on the surface of the fixing plate (251). The input disk assembly (257) is located at the output end of the filter rod composite unit (1), and the output disk assembly (254) is located at the input end of the filter rod forming unit. The belt is driven independently by another drive motor (259). A transfer channel (255) is provided between the transmission sides of the conveying disk assembly (252), the output disk assembly (254), the transfer disk assembly (256), and the input disk assembly (257).

2. The cavity-added fastener composite filter rod forming device according to claim 1, characterized in that, The feeding assembly (22) includes a base plate (226) fixedly installed with the independent frame (21). Support pulley assemblies (225) are provided at both ends of the top surface of the base plate (226). A drive assembly (222) is fixedly installed at the rear end of the top surface of the base plate (226). The rotating end of the drive assembly (222) is fixedly installed at the middle of the rear end of the roller (221). The bottom of the roller (221) rests between the tops of the two support pulley assemblies. 21) has an opening at the front end and is covered with a feeding cover (223). The feeding cover (223) is fixedly installed with the base plate (226). A negative pressure transmission component (224) is fixedly installed in the middle of the feeding cover (223) along the horizontal direction. The input end of the negative pressure transmission component (224) extends into the inside of the roller (221) and is located directly below the whole material feeding structure set in the center of the inside of the roller (221). Its output end is fixedly installed with the input end of the conveying component (23).

3. The cavity-added fastener composite filter rod forming equipment according to claim 2, characterized in that, The material feeding structure includes multiple baffles (2211) evenly distributed on the inner circumferential surface of the roller (221), and a V-shaped hopper (227) fixedly installed on the top surface of the input end of the negative pressure transmission component (224). The bottom opening of the V-shaped hopper (227) is directly above the conveyor belt of the negative pressure transmission component (224). One end of the baffle (2211) extends toward the central axis of the roller (221). Each baffle (2211) moves with the roller (221) to pour multiple fasteners from the top of the V-shaped hopper (227) into it.

4. The cavity-added fastener composite filter rod forming device according to claim 3, characterized in that, The inner surface of the V-shaped hopper (227) is provided with multiple obstruction barriers at equal intervals perpendicular to the axial direction of the roller (221).

5. The cavity-added fastener composite filter rod forming device according to claim 3, characterized in that, The conveying assembly (23) includes a vacuum generator (231) and a conveying pipe (232). The inlet end of the vacuum generator (231) is fixedly installed with the output end of the negative pressure transmission assembly (224), and the outlet end is connected to the input end of the deceleration and material distribution assembly (24) through the conveying pipe (232). The conveying pipe (232) conveys the firmware into the deceleration and material distribution assembly (24) through the compressed air of the vacuum generator (231).

6. The cavity-added fastener composite filter rod forming device according to claim 5, characterized in that, The deceleration and material distribution assembly (24) includes a material guide channel (241), a cam material distribution mechanism (242), and a buffer conveying mechanism (243). The cam material distribution mechanism (242) is fixedly installed on the surface of the fixed plate (251). The buffer conveying mechanism (243) is set at the entrance of the material guide channel (241) to decelerate the fast-moving firmware. The cam material distribution mechanism (242) is provided with a spiral convex to realize the radial misalignment and separation operation of the continuously input firmware, so that the firmware forms a predetermined spacing.

7. The cavity-added fastener composite filter rod forming device according to claim 6, characterized in that, The buffer conveying mechanism (243) includes two sets of synchronous friction pulleys (2433). The two sets of synchronous friction pulleys (2433) are respectively arranged on both sides of the inlet of the guide channel (241). The drive shaft of the synchronous friction pulley (2433) is fixedly equipped with a transmission gear (2432). The two transmission gears (2432) mesh with each other and are driven by a synchronous motor (2431) to realize the counter-rotation of the two sets of synchronous friction pulleys (2433) and transmit in the same direction as the original movement of the fastener.

8. The cavity-added fastener composite filter rod forming device according to claim 1, characterized in that, The input disk assembly (257) includes a mounting base (2572), which is coaxially fixedly mounted on the middle of the gear disk (2571). A synchronous pulley (2573) is fixedly mounted on one side of the mounting base (2572). The conveyor disk assembly (252) and the adapter disk assembly (256) have the same structure as the input disk assembly (257). The three synchronous pulleys (2573) are connected by the belt (258).

9. The cavity-added fastener composite filter rod forming device according to claim 8, characterized in that, The drive motor (259) is fixedly installed on the fixed plate (251) via a motor mount, and its rotating shaft end is fixedly connected to the mounting base (2572) of the input disk assembly (257) via a coupling; The mounting bases (2572) of both the conveyor plate assembly (252) and the adapter plate assembly (256) are rotatably connected to the fixing plate (251); The output disk assembly (254) differs from the structure described above in that the mounting base (2572) is coaxially fixedly mounted in the middle of the two toothed disks (2571), and the tooth plates of the two toothed disks (2571) are aligned.

10. The cavity-added fastener composite filter rod forming device according to claim 9, characterized in that, The transfer channel (255) is an integral structure formed by interconnecting the arc-shaped channels covering the transmission of each of the gear discs (2571).

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